After about 2 hours in the sun running (rather messing) around with my heavy gear... my most important lesson for sports photography ... I'll bring a monopod next time. no wonder those pro sports photographer always have a monopod attached (I had sore arms... towards the end of the event, I almost ran out of motivation to lift my camera). This is seriously the most important gear for sports photos... that way your eyes can see through the viewfinder throughout the entire game - capturing every moment that counts.
Having said that... I still have questions re whether I should use the "one shot" mode or switch to "al servo"... I find that one shot is better at focusing - but provided I am fast enough.
In all, I think it was a fun day... I learnt some practical tip from just being on the ground.